/**
 * Copyright (c) 2010, Casey Lai
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation and/or
 * other materials provided with the distribution.
 * 
 * Neither the name of the Cheetah Group nor the names of its contributors may be
 * used to endorse or promote products derived from this software without specific
 * prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 */

package org.cheetahworkflow.designer.policy;

import org.cheetahworkflow.designer.command.AddArrowCommand;
import org.cheetahworkflow.designer.command.ReconnectSourceCommand;
import org.cheetahworkflow.designer.model.Arrow;
import org.cheetahworkflow.designer.model.LogicNode;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.editpolicies.GraphicalNodeEditPolicy;
import org.eclipse.gef.requests.CreateConnectionRequest;
import org.eclipse.gef.requests.ReconnectRequest;



public class NodeGraphicalEditPolicy extends GraphicalNodeEditPolicy {

	@Override
	protected Command getConnectionCompleteCommand(CreateConnectionRequest req) {
		AddArrowCommand cmd = (AddArrowCommand) req.getStartCommand();
		cmd.setTarget((LogicNode) getHost().getModel());
        return cmd;
	}

	@Override
	protected Command getConnectionCreateCommand(CreateConnectionRequest req) {
		AddArrowCommand command = new AddArrowCommand();
        command.setSource((LogicNode) getHost().getModel());
        req.setStartCommand(command);
        return command;
	}

	@Override
	protected Command getReconnectSourceCommand(ReconnectRequest req) {
		ReconnectSourceCommand cmd = new ReconnectSourceCommand();
		cmd.setArrow((Arrow)req.getConnectionEditPart().getModel());
		cmd.setSource((LogicNode)getHost().getModel());
		return cmd;
	}

	@Override
	protected Command getReconnectTargetCommand(ReconnectRequest req) {
		// TODO Auto-generated method stub
		return null;
	}

}
